Gearing



E. GLASS.

GEARING.

APPLICATION FILED Ami-8. 192l- Patehted Alig. 29, 1922. 2 SHEETSSHEET 1.

E. GLASS.

GEARING. APPLICATION FILED AUG.8, I92}.

' 1,427,374, Patented Aug. 29, 1922'.

' 2SHEETSSHEET 2.

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. A X /X /\I\ l- Zita/ass Banner GLASS, on :anenrne, PENNSYLVANIA.

enanrne.

1,427,371. Application filed August 8,

To all whom it may concern: Be it known that LEnNnsr GLASS,V2L citi? zenof the United States, residing at Reading,- in the county of Berks andState of Pennsylvania, have invented certain new and useful Improvementsin a Gearing and. I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable .othersskilled in the art" to which it appertains to make and usethe same. sThis invention relates to gearing where by an intermittent reverserotary movement is converted into a continuousrotary movement in eithera clockwise or counterclockwise direction as desired. Y Specificallyconsidered the invention 're-' lates to an improvement in the gearingdisclosed in U. S; Patent No. 15378 781 granted me the 21st day of May,1921, fora rotary tooth brush. o The present invention simplifies thegearing disclosed in my'prior patent and renders the same morepositiveand certain in action. o Other objects and advantages will be apparentand suggest themselves as the na-' ture of the invention isunderstOOd.

While the drawingsillustrate an em-bodiment of the'invention it is to beunderstood that in adapting the same to meet differ ent' conditions andrequirements, various. changes in the form, proportion and minor detailsof construction may be resorted to without departing from the nature ofthe invention. 1 I 1 Referring to the accompanying drawings forming apart of the'specification, Figure 1 is a detail view of a rotary toothbrush embodying the invention. 5 Figure 2 is a sectional detail of theeasing,the brush being omitted and the parts being shown on a largerscal'e. v Figure 3 is a sectional detail of the gearmel Figure 4 isasection" on the "line as -wo f Fig. 2, and I I Figure 5 is a detail. 51

Corresponding and like] parts are referred to in following descriptionan specification orrrttersratent. P m t g.

1 21. Serial m... 490,G22.-

designated in the several views of the draw-,

ings by like reference characters. i o

- The numeral 1 designates a suitable frame or casing which constitutesa-housing for the/gearing. A drive shaft 2 is suitably" mountedwithingthe housingor frame 1. Agear wheel 8' is fast to the drive shaft2 and is provided at one side witha hub 4;.

A spiral spring 5 is fast at one end to the hubs and is connectedatitsopposite end to the frame 1 and is adapted to be wound by rotation ofthe gear wheel'3 inone direction, A tape 6 vor like. element is,attached at one end to the hub 4 and iswound thereon and extends athrough an opening formed in a sideof the frame 1. 5 When the tapeorlike-part v6 is drawnupon it isunwound from'thehub 4:1 and impartsrotarymovement to the gear wheel. Sand at the s'ame'time tensions-the spring 5by winding the same .upon the'hub 4. -When ,the tape or like part 6 isrelaxed the spring 5 comes into play and rotates the gear wheel311n areverse direction and rewinds the tape (5 uponthehub 1. A'ring7 or likepart is'moun'ted in axial 'alinement with the drive shaft;2 andisprovidedfat its outer edge with ratchet teeth 8 adaptedto cooperatewithaqdog 9 whereby the ring? is held stationary during the 'rotation of thedrive shaft 2 inone direction. The ring 'or part7. is provided with gearelementslO which are in meshing relation with the teeth of the .gearwheel 3. A rotary member :11 isloose on the drive shaft 2 and isprovided k 12 and 13, the teeth 12 being. in mesh with theteeth ofthegear elements 10 and-the teeth 13 being in meshwith the teethof gearelementsuli and 15 looselymounted upon a driven-shaft 16 which drivesthe parts to be rotated. The

rotary member 11 is provided upon one side with clutch teeth 17 whichcooperate with correspond;

'ing teeth ofia spring actuated clutch mem ber 18 splined to the driveshaft 2. When instrumentality of the clutch member 1'8.

with gear teeth the gear'wheel 3 is rotatediby a direct pull I uponthektape or like part6, the member '11 is correspondinglvrotated throughthe y o During this movement the ring or part 7 is free to rotate withthe parts 3 and 11. Upon a reverse rotation otthe gear wheel 3 and driveshaft 8 under the action of the spring 5, the ring or part 7 1s heldstationary by the teeth Sand dog 9 and the gear elements 10 being inmesh with the teeth of the gear wheel 8 are rotated thereby andpositively transmit motion to the part 11 inthe same direction. Duringthis action the teeth of the clutch member 18 ride upon the clutchteeth,17., It will thus be understood that the part 11 is continuouslyrotated in the same direction by an intermittentreverse rotary movementim-,

from the'frame orhousing 1 and iszprovid-,

ed at its outer end with a tooth brush 19 or-otherpart to be rotated. Ahousing 20 attached tc the frame 1 receives the shaft 16 which ismountedat its outer end therein. The gear elements 14 and '15 are loose on theshaft-16 and each is provided uponits inner side'with clutch teeth121.A. clutch member-22 splined on the shaft 16 is movable between the gearelements 1 f and-15 and isv adapted to be thrown into clutch engagementwith either. i A shipper member 23 mounted in the frame. or casingl isin cooperative relation with therclutch member 22 whereby the lattermaybe moved to a neutral position or into clutch engagement witheither-one of the gear elements 14 or 15 so as to rotate the shaft 16 inthe desired direction. The shaft16 may be rotated continuously in aclockwise or counterclockwise direction according to which one of thegear elements M or 15 -is in clutch engagement therewith. A pull uponthe tape or part 6 unwinds it from the hub a and rotates the gear 3inione direction and at the same time winds the spring 5. Th is effectspositive rotation of? the member 11 through the clutch 17 and 18. lVhenthe part 6' is relaxed the spring 5 comes into play to rotate the gearelement 3, in a reverse direction thereby'rewinding the part 6 andpositlvely-rotatmg theYgea'r elements 10 whichin turn effect a rotationof the part 11 in the same direction, the clutch 17 and 1S slippingduring this action. During the reverse rotation of the gear element 3the part 7 supporting the gear elements 10 is held stationary hence theaction ofthe gear-elements 10' in transmitting. motion from the parts 3to the parts 11.. I

Having thus described the invention, what I claim is 1. In gearing ofthe character specified, a drive shaft, means for imparting anintermittent reverse rotary movement to the drive shaft, a gtar wheelrotatable with the drive shaft, a rotary member in axial line vith thedrive shaft, a ratchet clutch between the rotary member and drive shaft,a gear element having toothed engagement with saidrotary member and gearwheel, a rotary support for the gear element loosely mounted in axialline with the rotary member and gear wheel and a ratchetconnectionfor:holding said support stationary. on the rotation of' the drive shaft inone direction and during the slipping action of, the clutch connectionbetween the said rotary member and drive shaft.

2. In gearingof the character specified, a drivev shaft, means forimpa-rtingan intermittent reverse rotary movement to the drive shaft, agear wheel fast to the' drive shaft and rotatable therewith, a rotarymember loosely mounted in axial line with the drive shaft, a ratchetclutch between the rotary member and drive shaft, a gear element formingconnecting means between said gear wheel and rotary member, a 1'0- tarysupport for the gear element loosely mounted in axial line with the gearwheel and rotary member and a ratchet connection for holding the rotarysupportstationary during the rotation of the drive shaft in onedirection.

3. In gearing of the character specified, a drive shaft, means forimparting an intermittent reverse rotary movement to the drive shaft, agear wheel fast tothe drive shaft, a rotary member loose on the driveshaft, a rotary support loosely mounted in termediatesaid gear wheel androtary member, gear elements mounted. on the rotary support and havingtoothed connection with the said gearswheel and rotary. member, aratchet connection between the rotary sup.- portand a relativestationary member to prevent rotation of the support during movement ofthe drive shaft in one direction and a ratchet clutch between saidrotary member and drive shaft to cause said partstojrota-te in unisonwith said rotary support. 1 g

a. In gearings of the character specified comprising drive and drivenshafts, means for imparting intermittent reverse rotary movement to thedrive shaft, a gear wheel fast to the drive shaft, a rotary member looseon the drive shaft, av ratchet clutch between the rotary member anddriveshaft, a rotary support loosely mounted in axial line withthe-drive shaft, a ratchet connectionforholding the rotaryjsupportstatienary during the rotation of the drive shaft either one of the gearelements loose 10 in one direction, gear elements mounted on thereon.

the rotary support and having toothed en- In testimony whereof I aifixmy signagagement with said gear wheel and rotary ture in presence of twowitnesses.

5 member, gear elements loose on the driven shaft and having toothedconnection with ERNEST A said rotary member and a clutch memberWitnesses: o v splined on the driven shaft and adapted to 'JAMES MOYER,be thrown into clutched engagement with l ADAM WINDBIGLER.

